Auroras (northern lights) in San Francisco — Mar 20, 2026
Probability of northern lights in San Francisco
Information as of 2026-03-20 23:48 (end of day) local time in San Francisco
0 %
San Francisco
Aurora intensity index
Auroral intensity index and the theoretically possible latitude of observations for nighttime in the Western Hemisphere as of 2026-03-20 23:48 (end of day) local time
Northern lights (auroras) over North America
Changes from 2026-03-20 to 2026-03-21 UTC
Northern lights (auroras) in the northern hemisphere
Changes from 2026-03-20 to 2026-03-21 UTC
Probability of northern lights (auroras) in cities of United States
Information as of 2026-03-20 23:48 (end of day) local time in San Francisco
0 %
Washington
0 %
New York
0 %
Chicago
0 %
Philadelphia
4 %
Seattle
0 %
Detroit
1 %
Portland
0 %
Boston
1 %
Madison
8 %
Bismarck
2 %
Olympia
5 %
Helena
3 %
Saint Paul
100 %
Fairbanks
56 %
Anchorage
57 %
Juneau
32 %
Hooper Bay
65 %
Nome
88 %
Kotzebue
75 %
Utqiagvik
32 %
Bethel
66 %
Cordova
Polar auroras over the past 2 days
Changes in the auroral intensity index from 2026-03-19 to 2026-03-20 local time
